DATASHEET
ISL8502 FN6389
Rev 2.00
June 29, 2010 2A Synchronous Buck Regulator with Integrated MOSFETs
The ISL8502 is a synchronous buck controller with internal
MOSFETs packaged in a small 4mmx4mm QFN package.
The ISL8502 can support a continuous load of 2A and has a
very wide input voltage range. With the switching MOSFETs
integrated into the IC, the complete regulator footprint can
be very small and provide a much more efficient solution
than a linear regulator. Features The ISL8502 is capable of stand alone operation or it can be
used in a master slave combination for multiple outputs that
are derived from the same input rail. Multiple slave channels
(up to six) can be synchronized. This method minimizes the
EMI and beat frequencies effect with multi-channel
operation. Wide Input Voltage Range, 5V В±10% or 5.5V to 14V The switching PWM controller drives two internal N-Channel
MOSFETs in a synchronous-rectified buck converter
topology. The synchronous buck converter uses
voltage-mode control with fast transient response. The
switching regulator provides a maximum static regulation
tolerance of В±1% over line, load, and temperature ranges.
The output is user-adjustable by means of external resistors
down to 0.6V. …
